pal <- sequential_hcl("red-blue",n=3,rev=T)
col <- colorNumeric(pal,domain=spending_brand_sum$transactions_avg)


fp <- leaflet() %>%
    addProviderTiles(providers$CartoDB.VoyagerLabelsUnder, group = "Default") %>%
    addTiles(urlTemplate = mapbox_sat, attribution = mapbox_satAtt, group = "Satellite") %>%
    addPolygons(
      data = spending_brand_sum,
      color = col(spending_brand_sum$transactions_avg),
      weight=1,
      popup = paste0(
        "<strong>",spending_brand_sum$zip,"</strong><br>",
        spending_brand_sum$transactions_avg),
      labelOptions = labelOptions(
        style = list("font-weight" = "normal", padding = "3px 8px"),
        textsize = "15px",
        direction = "auto"),
      group = "All"
      ) %>%
    addPolygons(
      data = spending_brand_sum_top5,
      weight=2,
      fillOpacity = 0,
      color = "black",
      popup = paste0(
        "<strong>",spending_brand_sum_top5$zip,"</strong><br>",
        spending_brand_sum_top5$transactions_avg),
      labelOptions = labelOptions(
        style = list("font-weight" = "normal", padding = "3px 8px"),
        textsize = "15px",
        direction = "auto"),
      group = "Top 5"
      ) %>%
    addPolygons(
      data = spending_brand_sum_top10,
      fillOpacity = 0,
      color = "black",
      weight=2,
      popup = paste0(
        "<strong>",spending_brand_sum_top10$zip,"</strong><br>",
        spending_brand_sum_top10$transactions_avg),
      labelOptions = labelOptions(
        style = list("font-weight" = "normal", padding = "3px 8px"),
        textsize = "15px",
        direction = "auto"),
      group = "Top 10"
      ) %>%
    addLegend(
      position = 'bottomleft',
      values = spending_brand_sum$transactions_avg,
      pal = col,
      title='Avg Daily Walmart Transactions'
      ) %>%
    addLayersControl(
      baseGroups = c("Default","Satellite"),
      overlayGroups = c("All","Top 5","Top 10")
    ) %>% 
  hideGroup(c("Top 5","Top 10"))

fp